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RE: How to access named kernel object created by use--r mo-de applicati-on in kernel driver?

OSR_Community_UserOSR_Community_User Member Posts: 110,217
Great that you point out the call and I do find it exported in NTOSKRNL.exe.
Can you tell me the function declaration that I guess you must already know
?

Thanx,

Jack

> -----Original Message-----
> From: Iñaki Castillo [SMTP:[email protected]]
> Sent: Wednesday, March 01, 2000 9:26 AM
> To: File Systems Developers Interest List
> Subject: [ntfsd] RE: How to access named kernel object created by
> use r mo de applicati on in kernel driver?
>
> Use ObOpenObjectByName
>
> > -----Original Message-----
> > From: Smith, Joel
> > Sent: miércoles 1 de marzo de 2000 14:31
> > To: File Systems Developers Interest List
> > Subject: [ntfsd] RE: How to access named kernel object created by
> > user mo de applicati on in kernel driver?
> >
> > You could just pass the handles of the dispatch objects to the
> > kernel mode driver from the user mode application via some IRP you
> define.
> > You will be in the same context as the user mode app, so the handles
> will
> > be valid. You could then reference the synch objects handles with
> > ObReferenceObjectByHandle, hold onto there pointers in the driver, and
> use
> > the dispatch objects with normal kernel mode synchronization calls.
> >
> >
> > Hi all,
> >
> > I have a user mode application that uses the SWMRG(single writer
> multiple
> > readers guard) as implemented in chap 10 of Advanced windows to protect
> a
> > named memory mapped file.
> >
> > In the kernel mode file filter driver, I need to access the memory
> mapped
> > file. In ZwOpenSection, we can pass an ObjectAttributes that
> encapsulates
> > the name. However, I did not know how to do that for Mutex, Event &
> > Semaphore kernel objects.
> >
> > Any idea ?
> >
> > Thanks,
> >
> >
> > Jack(Wei-Chi) Cheng
> > Lexis-Nexis DCE Support Team
> > email: [email protected]
> > phone: 937-8656800 x 4028
> >
> >
> > ---
> > You are currently subscribed to ntfsd as: [email protected]
> > To unsubscribe send a blank email to $subst('Email.Unsub')
> >
>
> ---
> You are currently subscribed to ntfsd as: [email protected]
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